Claude Opus 4 vs Mistral Large

Compare Claude Opus 4 by Anthropic against Mistral Large by Mistral AI, context windows of 200K vs 32K, tested across 16 shared challenges. Updated April 2026.

Which is better, Claude Opus 4 or Mistral Large?

Claude Opus 4 and Mistral Large are both competitive models. Claude Opus 4 costs $15/M input tokens vs $8/M for Mistral Large. Context windows: 200K vs 32K tokens. Compare their real outputs side by side below.

Key Differences Between Claude Opus 4 and Mistral Large

Claude Opus 4 is made by anthropic while Mistral Large is from mistral. Claude Opus 4 has a 200K token context window compared to Mistral Large's 32K. On pricing, Claude Opus 4 costs $15/M input tokens vs $8/M for Mistral Large.

Our Verdict
Claude Opus 4
Claude Opus 4
Mistral Large
Mistral LargeRunner-up

No community votes yet. On paper, Claude Opus 4 has the edge — bigger model tier, newer, bigger context window, major provider backing.

Mistral Large is 3.1x cheaper per token — worth considering if cost matters.

Slight edge
Writing DNA

Style Comparison

Similarity
98%

Claude Opus 4 uses 3.3x more sentence length

Claude Opus 4
Mistral Large
64%Vocabulary49%
62wSentence Length19w
0.52Hedging0.86
4.4Bold8.9
9.1Lists5.4
0.11Emoji0.31
1.87Headings1.01
0.27Transitions0.10
Based on 16 + 16 text responses
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Claude Opus 4Mistral Large

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
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